Becoming a part of the Brazil Engineering team (BR Market) means helping solve our small merchant’s problems on your daily routine and helping shape the future of our products in the Brazilian market.

As a Senior Full-stack Engineer, you will be responsible for improving the functionality and user experience of SumUp's Receivables platform and ensuring that it meets the needs of our merchants and from the regulatory chamber (BACEN). It should be achieved by improving the performance and scalability of the systems, designing and developping integration with stakeholders and external partners, including backoffice features and contributing to the development of a high-performing team. 

This is a hybrid work position (3x a week at our office in Pinheiros) because we truly believe in the power of collaboration and in-person interactions to foster a sense of belonging and support our Founder’s Mentality.

What you’ll do

• Ramp up quickly on the Receivables platform architecture, core services, and the team’s product portfolio
• Stabilize key services by identifying and addressing monitoring gaps, improving reliability, and resolving outstanding issues.
• Start shaping or supporting frontend experiences using React, Next.js, and TypeScript.
• Enable operational efficiency by implementing or extending APIs that empower Ops and Support teams to act on manual flows using Golang.
• Foster strong collaboration by engaging proactively with the team

You’ll be great for this role if you have:

• Strong experience in unit and product-level testing

• Skilled in setting up and managing A/B tests aligned with product objectives.

• Proficiency in monitoring features, configuring alerts, and maintaining high service quality.

• Deep expertise in software engineering best practices

• Advanced knowledge of React and Next.js 

• Solid backend development capabilities with a willingness to learn Golang if needed.

• Strong understanding of relational databases and AWS cloud services.

• Proven ability to lead and deliver cross-squad technical initiatives of small to medium scale.

Any of the following would be considered a plus:

• Experience with observability tools such as Honeycomb (debugging/tracing) and Grafana (monitoring/data visualization).

• Expertise in PostgreSQL query optimization and performance tuning.

• Familiarity with NoSQL databases (e.g., DocumentDB), including optimization strategies.

• Background in payments and receivables integration, with knowledge of industry standards and best practices.

• Hands-on experience with Golang in production systems.

• Proficiency with modern front-end tools and libraries

Why you should join SumUp

• Career Growth: Join a truly global team and work on large-scale fintech products used by millions of businesses worldwide, with ample opportunities for professional development and upward mobility,
• Learning & Development: We offer an annual Learning & Development budget of R$ 10,000, which you can use for conferences, certifications, and further education to enhance your skills,
• Extended Time Off: After 3 years at SumUp, you’ll receive an additional 30 days off through our Break4Me program, on top of your regular vacation period,
• English Classes: Improve your language skills with our English classes, provided through The English Academy,
• Equity: Participate in SumUp’s virtual stock ownership program, gaining a stake in our future success,
• Global Experience: Join our global off-sites, hackathons, and events, and collaborate with a diverse team of 3,000+ people from over 90 countries,
• Referral Bonus: Earn a bonus when you help us grow by successfully referring top talent to our team,
• Comprehensive Benefits: We care deeply about our team’s well-being and offer a range of benefits, including health plans, meal vouchers (VR), Zenclub, Gympass, life insurance, a pension plan, childcare allowance, and more.

About SumUp

We believe in the everyday hero.

Small business owners are at the heart of all we do, so we create powerful, easy-to-use financial solutions to help them run their businesses. With a founder’s mentality and a 'team-first’ attitude, our diverse teams across Europe, South America and the United States work together to ensure that the small business owners we partner with can be successful doing what they love. 

SumUp is an Equal Employment Opportunity employer, committed to fostering a diverse and inclusive workforce. We strictly prohibit discrimination based on race, color, religion, national origin, gender, sexual orientation, age, disability, or any other protected characteristic.

For more insight into SumUp’s culture:

• A tour of our São Paulo office
• Ask me anything: Engineering at SumUp
• SumUp’s Innovation Hackathon

Job Application Tip

We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.